China preview quotes: Sauber

Sergio Perez: "The Shanghai circuit is quite a challenging one, and I would say similar to Sepang. I know it from two races I competed in. This was an A1GP race back in 2007 and a round of GP2 Asia in 2009. I especially like the very fast straight with its hard braking point at the end. I hope I can do better there in qualifying than I did in Malaysia, but my main goal is to learn and get more experience. I enjoyed my times in Shanghai a lot, I'm looking forward to my third visit there and can't wait to take the F1 car around that circuit."

Technical Director James Key: "With the small gap between Malaysia and China we are not planning to bring too many updates to the car, but we will have a few things to try. It is amazing for me going back to China, as it was the first race I had with the team last year, and a year has just flown past. I think, given the nature of the track, at the moment it could be quite good for our car. The track has some interesting challenges. It has a long straight at the back, some quite tricky slow speed corners in the middle of the lap and there are these unwinding and winding in profiles of corners, which are important for traction and braking stability, particularly under lateral load. It will be interesting to see how the tyres cope and the car copes with that, with much depending on how the weather conditions are. I think what we have seen between Melbourne and Kuala Lumpur is, with different track temperatures and surfaces, the tyres have behaved in quite a different way to what was expected. It will be interesting to see if that trend continues in China, or whether it will be a bit more predictable. Obviously the hope is we can continue to fight for points and show a decent level of performance."